Trailering with the drive leg up or down is usually determined by clearance
between the propeller and the ground - allow for speed bumps and bouncing.
If there's no place for a transom saver to fit the drive leg or the trailer
there should be a latch of some type that adjusts the tilt/trim angle. Find
a way to secure that latch so that it won't bounce free.
I think I've seen people hang a 2x4 to prevent the engine from going
vertical.

"Chris" wrote in message
.. .
Howdy boating guru's,

My old project boat is coming closer to closer to an end, and I'll be
testing it out soon. To describe my next question, let me give you some
background on the setup.

The boat is 15.5 feet, and on a single axle trailer with rollers. The
motor is an old 80's Merc without electronic tilt or trim, it has the
caveman style.

It has come to my attention that transporting this boat without care could
be bad for the transom as the motor can bounce around.

How did you guys transport these boats back in the day?

A transom saver wouldn't appear to me to work, as I don't think the angle
is there to attach it to the bottom of the trailer. Perhaps these older
styles of trailers were before transom savers were developed.

How would someone secure the motor well enough to save it? I assume
transporting with the motor up and not down would be preferred., or not?

Thanks
Chris